| columns are time series |
| with names |
| (1) Total Mortality |
tmort |
| (2) Respiratory Mortality |
rmort |
| (3) Cardiovascular Mortality |
cmort |
| (4) Temperature |
tempr |
| (5) Relative Humidity |
rh |
| (6) Carbon Monoxide |
co |
| (7) Sulfur Dioxide |
so2 |
| (8) Nitrogen Dioxide |
no2 |
| (9) Hydrocarbons |
hycarb |
| (10) Ozone |
o3 |
| (11) Particulates |
part |